FR3130518A1 - PNEUMATIC FLAT INFLATOR - Google Patents
PNEUMATIC FLAT INFLATOR Download PDFInfo
- Publication number
- FR3130518A1 FR3130518A1 FR2114205A FR2114205A FR3130518A1 FR 3130518 A1 FR3130518 A1 FR 3130518A1 FR 2114205 A FR2114205 A FR 2114205A FR 2114205 A FR2114205 A FR 2114205A FR 3130518 A1 FR3130518 A1 FR 3130518A1
- Authority
- FR
- France
- Prior art keywords
- gas
- piston
- cylinder
- cartridge
- inflation device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009527 percussion Methods 0.000 claims abstract description 38
- 230000004913 activation Effects 0.000 claims abstract description 22
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000007872 degassing Methods 0.000 claims description 4
- 238000005381 potential energy Methods 0.000 claims description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 230000004224 protection Effects 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C9/00—Life-saving in water
- B63C9/08—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like
- B63C9/18—Inflatable equipment characterised by the gas-generating or inflation device
- B63C9/19—Arrangements for puncturing gas-generating cartridges
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B99/00—Subject matter not provided for in other groups of this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C9/00—Life-saving in water
- B63C9/24—Arrangements of inflating valves or of controls thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/08—Mounting arrangements for vessels
- F17C13/084—Mounting arrangements for vessels for small-sized storage vessels, e.g. compressed gas cylinders or bottles, disposable gas vessels, vessels adapted for automotive use
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/015—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches with shock-absorbing means
- A41D13/018—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches with shock-absorbing means inflatable automatically
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B33/00—Devices for allowing seemingly-dead persons to escape or draw attention; Breathing apparatus for accidentally buried persons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/058—Size portable (<30 l)
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/01—Mounting arrangements
- F17C2205/0103—Exterior arrangements
- F17C2205/0111—Boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/01—Mounting arrangements
- F17C2205/0123—Mounting arrangements characterised by number of vessels
- F17C2205/013—Two or more vessels
- F17C2205/0134—Two or more vessels characterised by the presence of fluid connection between vessels
- F17C2205/0138—Two or more vessels characterised by the presence of fluid connection between vessels bundled in series
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/01—Mounting arrangements
- F17C2205/0123—Mounting arrangements characterised by number of vessels
- F17C2205/013—Two or more vessels
- F17C2205/0134—Two or more vessels characterised by the presence of fluid connection between vessels
- F17C2205/0142—Two or more vessels characterised by the presence of fluid connection between vessels bundled in parallel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/01—Mounting arrangements
- F17C2205/0123—Mounting arrangements characterised by number of vessels
- F17C2205/013—Two or more vessels
- F17C2205/0134—Two or more vessels characterised by the presence of fluid connection between vessels
- F17C2205/0146—Two or more vessels characterised by the presence of fluid connection between vessels with details of the manifold
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0311—Closure means
- F17C2205/032—Closure means pierceable
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/013—Carbone dioxide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
- F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
- F17C2225/0107—Single phase
- F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/01—Improving mechanical properties or manufacturing
- F17C2260/018—Adapting dimensions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/07—Applications for household use
- F17C2270/0772—Inflation devices, e.g. for rescue vests or tyres
Abstract
Dispositif de gonflage à plat pneumatique La présente invention concerne un dispositif de gonflage (1) pour gilet gonflable de sécurité comportant un carter de stockage (2) contenant une première cartouche (4) de gaz pressurisé et au moins une deuxième cartouche (5) de gaz pressurisé disposées accolées les unes à côté des autres de manière à former une rangée et un carter de libération (3) comprenant un premier dispositif de percussion (20) permettant, en cas d'activation, de perforer la première cartouche (4) de gaz de manière à libérer le gaz qu'elle contient sous forme gazeuse et un deuxième dispositif de percussion (30) associé à chaque deuxième cartouche (5) de gaz et permettant, en cas d'activation, de perforer cette dernière de manière à libérer le gaz qu'elle contient sous forme gazeuse. Fig 1The present invention relates to an inflation device (1) for an inflatable safety vest comprising a storage casing (2) containing a first cartridge (4) of pressurized gas and at least a second cartridge (5) of pressurized gas arranged side by side so as to form a row and a release casing (3) comprising a first percussion device (20) allowing, in the event of activation, to perforate the first cartridge (4) of gas so as to release the gas it contains in gaseous form and a second percussion device (30) associated with each second gas cartridge (5) and allowing, in the event of activation, to perforate the latter so as to release the gas it contains in gaseous form. Fig 1
Description
Domaine technique de l'inventionTechnical field of the invention
La présente invention concerne le domaine de la prévention et de la réduction des blessures liées à une chute en général, notamment à la pratique de la moto, du ski ou de l'équitation, et plus particulièrement un dispositif de gonflage pour un gilet gonflable de sécurité.The present invention relates to the field of the prevention and reduction of injuries related to a fall in general, in particular to the practice of motorcycling, skiing or horse riding, and more particularly an inflation device for an inflatable vest of security.
Etat de la techniqueState of the art
Avec la démocratisation de la pratique de l'équitation et du ski et notamment du ski dit "extrême" tel que le ski hors-piste, on a cherché à mettre au point des systèmes destinés à protéger, lors de chutes, les motards, cavaliers ou skieurs, et plus spécifiquement les parties de leur corps les plus exposées telles que, par exemple, la nuque, le thorax, la colonne vertébrale, l'abdomen et les hanches.With the democratization of the practice of horse riding and skiing and in particular of so-called "extreme" skiing such as off-piste skiing, attempts have been made to develop systems intended to protect, during falls, motorcyclists, riders or skiers, and more specifically the most exposed parts of their body such as, for example, the neck, the thorax, the spine, the abdomen and the hips.
Ainsi, des protections dites "intelligentes" ont été élaborées. Ce type de protections est classiquement constitué d'un gilet gonflable de sécurité d'encombrement très faible et apte à être gonflé très rapidement par un gaz, lors de la chute du porteur, pour éviter à ce dernier de percuter violemment le sol. Le fonctionnement de ce gilet est analogue au fonctionnement des "airbags" installés dans les véhicules.Thus, so-called "intelligent" protections have been developed. This type of protection is conventionally made up of an inflatable safety vest of very small size and able to be inflated very quickly by a gas, when the wearer falls, to prevent the latter from hitting the ground violently. The operation of this vest is analogous to the operation of the "airbags" installed in vehicles.
Ainsi, le gilet gonflable comporte une poche "airbag" étanche apte à être gonflée et étant intégrée dans un textile et répartie autour du corps de l'utilisateur de manière à protéger certaines zones du corps préalablement identifiées, ladite poche pouvant être elle-même intégrée sous forme de doublure d’une veste. Ledit gilet gonflable comporte également un dispositif de gonflage apte à permettre la libération d'un gaz, classiquement du dioxyde de carbone CO2, contenu dans une cartouche de gaz liquéfié, ledit dispositif de gonflage comprenant en outre un organe perforant étant mobile et destiné à perforer l'extrémité de ladite cartouche de gaz prévue à cet effet.Thus, the inflatable vest comprises a sealed "airbag" pocket capable of being inflated and being integrated into a textile and distributed around the body of the user so as to protect certain previously identified areas of the body, said pocket itself possibly being integrated in the form of a jacket lining. Said inflatable vest also comprises an inflation device capable of allowing the release of a gas, conventionally carbon dioxide CO2, contained in a cartridge of liquefied gas, said inflation device further comprising a perforating member being mobile and intended to perforate the end of said gas cartridge provided for this purpose.
Après une chute du porteur et la libération du gaz dans la poche "airbag" du gilet gonflable de sécurité, il faut remettre le dispositif de gonflage dans son état initial, afin de pouvoir le réutiliser avec ledit gilet gonflable de sécurité.After the wearer has fallen and the gas has been released in the "airbag" pocket of the inflatable safety vest, the inflation device must be returned to its initial state, in order to be able to reuse it with said inflatable safety vest.
Les dispositifs de gonflage connus sont certes efficaces, mais ils présentent l'inconvénient majeur, d'une part, de comprendre de nombreuses pièces rendant leurs conception et fabrication complexes et leur fiabilité non optimale et, d'autre part, d'être difficile à remettre dans leur état initial en vue d'une nouvelle utilisation.The known inflation devices are certainly effective, but they have the major drawback, on the one hand, of comprising many parts making their design and manufacture complex and their reliability not optimal and, on the other hand, of being difficult to return to their original condition for further use.
Le but de la présente invention est donc de pallier les inconvénients précédemment cités et de présenter une alternative aux dispositifs de gonflage pour gilet gonflable de sécurité connus en proposant un dispositif de gonflage fiable, résistant, facile à mettre en œuvre et à réinitialiser.The object of the present invention is therefore to overcome the drawbacks mentioned above and to present an alternative to the inflating devices for known inflatable safety vests by proposing an inflating device that is reliable, resistant, easy to implement and to reset.
Conformément au premier objet de l’invention, il est donc proposé un dispositif de gonflage pour gilet gonflable de sécurité comportant un carter de stockage contenant une première cartouche de gaz pressurisé et au moins une deuxième cartouche de gaz pressurisé disposées accolées les unes à côté des autres de manière à former une rangée et un carter de libération comprenant un premier dispositif de percussion permettant, en cas d'activation, de perforer la première cartouche de gaz de manière à libérer le gaz qu'elle contient sous forme gazeuse et un deuxième dispositif de percussion associé à chaque deuxième cartouche de gaz et permettant, en cas d'activation, de perforer cette dernière de manière à libérer le gaz qu'elle contient sous forme gazeuse, ledit dispositif de gonflage étant remarquable en ce que ledit premier dispositif de percussion comprend au moins :
- un cylindre dont l'extrémité inférieure est fermée de façon non permanente et l'extrémité supérieure est en partie obturée par une butée recevant sur sa partie supérieure la première cartouche de gaz,
- un piston muni d'une extrémité perforante orientée en direction de l'extrémité supérieure dudit cylindre et coulissant entre une position "normale" dans laquelle son extrémité perforante n'est pas en contact avec la première cartouche de gaz et une position "activation" dans laquelle ladite extrémité perforante a perforé ladite première cartouche de gaz,
- un organe de poussée apte à mettre en mouvement ledit piston de sa position "normale" à sa position "activation", et
- un organe de retenue permettant de maintenir ledit piston dans sa position "normale",
en ce que ledit deuxième dispositif de percussion comprend au moins :
- un cylindre dont l'extrémité inférieure est en partie fermée et l'extrémité supérieure est en partie obturée par une butée recevant sur sa partie supérieure la deuxième cartouche de gaz, et comprenant en partie supérieure au moins un orifice de refoulement mettant en relation l'intérieur dudit cylindre et l'extérieur du dispositif de gonflage,
- un piston muni d'une extrémité perforante orientée en direction de l'extrémité supérieure dudit cylindre et coulissant entre une position "normale" dans laquelle son extrémité perforante n'est pas en contact avec la deuxième cartouche de gaz et une position "activation" dans laquelle ladite extrémité perforante a perforé ladite deuxième cartouche de gaz,
- un organe de retenue permettant de maintenir ledit piston dans sa position "normale", et
en ce que le carter de libération comporte un conduit principal mettant en relation fluidique la partie supérieure du cylindre du premier dispositif de percussion avec l'extrémité inférieure du cylindre de chaque deuxième dispositif de percussion par le biais d'un conduit secondaire débouchant d'un côté sous l'extrémité inférieure dudit cylindre de chaque deuxième dispositif de percussion et de l'autre dans ledit conduit principal afin d'acheminer, en cas d'activation, d'acheminer le gaz de la première cartouche de gaz libéré par le piston jusqu'au sous chaque piston de sorte à le mettre en mouvement de sa position "normale" à sa position "activation".In accordance with the first object of the invention, there is therefore proposed an inflation device for an inflatable safety vest comprising a storage casing containing a first cartridge of pressurized gas and at least one second cartridge of pressurized gas arranged side by side others so as to form a row and a release casing comprising a first percussion device making it possible, in the event of activation, to perforate the first gas cartridge so as to release the gas which it contains in gaseous form and a second device percussion device associated with each second gas cartridge and making it possible, in the event of activation, to perforate the latter so as to release the gas which it contains in gaseous form, said inflation device being noteworthy in that said first percussion device includes at least:
- a cylinder whose lower end is closed in a non-permanent manner and the upper end is partially closed off by a stop receiving the first gas cartridge on its upper part,
- a piston provided with a perforating end oriented towards the upper end of said cylinder and sliding between a "normal" position in which its perforating end is not in contact with the first gas cartridge and an "activation" position wherein said piercing end has punctured said first gas cartridge,
- a thrust member capable of moving said piston from its "normal" position to its "activation" position, and
- a retaining member for maintaining said piston in its "normal" position,
in that said second percussion device comprises at least:
- a cylinder whose lower end is partly closed and the upper end is partly closed by a stop receiving on its upper part the second gas cartridge, and comprising in the upper part at least one discharge orifice connecting the interior of said cylinder and the exterior of the inflation device,
- a piston provided with a perforating end oriented towards the upper end of said cylinder and sliding between a "normal" position in which its perforating end is not in contact with the second gas cartridge and an "activation" position wherein said piercing end has punctured said second gas cartridge,
- a retaining member making it possible to maintain said piston in its "normal" position, and
in that the release casing comprises a main duct putting the upper part of the cylinder of the first percussion device in fluidic relationship with the lower end of the cylinder of each second percussion device by means of a secondary duct opening out from a side under the lower end of said cylinder of each second percussion device and on the other in said main conduit in order to convey, in the event of activation, to convey the gas of the first cartridge of gas released by the piston until 'under each piston so as to set it in motion from its "normal" position to its "activation" position.
Les première et deuxièmes cartouches de gaz comprennent avantageusement chacune une extrémité perforable en forme d'opercule circulaire.The first and second gas cartridges advantageously each comprise a perforable end in the form of a circular cap.
De manière avantageuse, chaque orifice de refoulement est positionné sous et au plus près de la butée correspondante et en ce que la valeur de la surface dudit orifice de refoulement est égale à au moins la valeur de la surface de la section transversale de l'extrémité perforable de ladite deuxième cartouche de gaz.Advantageously, each discharge orifice is positioned under and as close as possible to the corresponding stop and in that the value of the surface of said discharge orifice is equal to at least the value of the surface of the cross section of the end pierceable of said second gas cartridge.
Le cylindre de chaque deuxième dispositif de percussion comporte de préférence au moins un orifice de dégazage mettant en relation l'intérieur dudit cylindre et l'extérieur du dispositif de gonflage, afin d'évacuer le gaz compris entre l'extrémité inférieure dudit cylindre et le piston en position "activation" et de permettre le retour dudit piston vers sa position "normale".The cylinder of each second percussion device preferably comprises at least one degassing orifice connecting the inside of said cylinder and the outside of the inflation device, in order to evacuate the gas between the lower end of said cylinder and the piston in the "activation" position and to allow said piston to return to its "normal" position.
La somme des valeurs de la surface de l'orifice de dégazage de chaque deuxième dispositif de percussion est avantageusement égale à au moins la valeur de la surface de la section transversale de l'extrémité perforable de la première cartouche de gaz.The sum of the values of the area of the degassing orifice of each second percussion device is advantageously equal to at least the value of the area of the cross section of the perforable end of the first gas cartridge.
De manière avantageuse, un volume résiduel Ve subsiste entre la butée du premier dispositif de percussion et la face supérieure dudit piston associé en position "activation", ce volume résiduel Ve ayant une hauteur He au moins égale à la valeur de la largeur de la section transversale de l'extrémité perforable de la première cartouche de gaz.Advantageously, a residual volume Ve remains between the abutment of the first percussion device and the upper face of said associated piston in the "activation" position, this residual volume Ve having a height He at least equal to the value of the width of the section cross section of the puncturable end of the first gas cartridge.
Le conduit principal a avantageusement une section transversale de forme oblongue et la somme des valeurs de la surface de la section transversale du conduit secondaire associé à chaque deuxième dispositif de percussion est supérieure ou égale à la valeur de la surface de la section transversale du conduit principal.The main duct advantageously has a cross-section of oblong shape and the sum of the values of the cross-sectional area of the secondary duct associated with each second percussion device is greater than or equal to the value of the cross-sectional area of the main duct .
Selon un mode de réalisation préféré, le dispositif de gonflage est tel que la valeur de V1/V0soit comprise entre 1 et 3, avec V0correspondant à la somme des valeurs du volume résiduel Ve, du volume Vcp du conduit principal et des volumes Vcs des conduits secondaires, et V1correspondant à la somme des valeurs dudit volume V0et des volumes Vtph occupés par le gaz libéré dans les cylindres des deuxièmes dispositifs de percussion lorsque les pistons correspondants sont en position "activation".According to a preferred embodiment, the inflation device is such that the value of V 1 /V 0 is between 1 and 3, with V 0 corresponding to the sum of the values of the residual volume Ve, of the volume Vcp of the main conduit and volumes Vcs of the secondary ducts, and V 1 corresponding to the sum of the values of said volume V 0 and of the volumes Vtph occupied by the gas released in the cylinders of the second percussion devices when the corresponding pistons are in the "activation" position.
La valeur de la longueur des pistons respectifs des premier et deuxièmes dispositifs de percussion est avantageusement supérieure ou égale à 1,5 fois la valeur du diamètre desdits pistons.The value of the length of the respective pistons of the first and second percussion devices is advantageously greater than or equal to 1.5 times the value of the diameter of said pistons.
De manière préférée, la valeur de la course du piston de chaque deuxième dispositif de percussion est au plus égale à la valeur de Lt–Lp–Hor, dans laquelle Lt désigne la longueur du cylindre, Lp désigne la longueur du piston, et Hor désigne la hauteur de l'orifice de refoulement.Preferably, the value of the stroke of the piston of each second percussion device is at most equal to the value of Lt–Lp–Hor, in which Lt denotes the length of the cylinder, Lp denotes the length of the piston, and Hor denotes the height of the discharge port.
L'organe de retenue du premier dispositif de percussion est avantageusement une goupille apte à être engagée simultanément dans un orifice de retenue du carter de libération et dans une empreinte aménagée dans le piston pour le maintenir en position "normale", ladite goupille étant apte à être solidaire d'une sangle reliant mécaniquement ladite goupille à un point fixe.The retaining member of the first percussion device is advantageously a pin capable of being engaged simultaneously in a retaining orifice of the release casing and in an indentation made in the piston to keep it in the "normal" position, said pin being capable of be integral with a strap mechanically connecting said pin to a fixed point.
Selon un mode de réalisation avantageux, l'organe de poussée du premier dispositif de percussion est un ressort hélicoïdal de compression disposé entre le piston et l'extrémité inférieure du cylindre, cette dernière étant fermée de manière non permanente par une vis de tarage coopérant avec un taraudage aménagé dans le carter de libération sous et dans le prolongement dudit cylindre.According to an advantageous embodiment, the thrust member of the first percussion device is a helical compression spring arranged between the piston and the lower end of the cylinder, the latter being closed in a non-permanent manner by a setting screw cooperating with a thread arranged in the release housing under and in the extension of said cylinder.
Le ressort hélicoïdal de compression a de préférence, d'une part, un diamètre inférieur au diamètre du piston du premier dispositif de percussion et, d'autre part, une raideur et une longueur détendu permettant d'obtenir une énergie potentielle Epr supérieure à l'énergie Epc4 nécessaire à la perforation de la première cartouche de gaz.The helical compression spring preferably has, on the one hand, a diameter smaller than the diameter of the piston of the first percussion device and, on the other hand, a stiffness and an extended length making it possible to obtain a potential energy Epr greater than the Epc4 energy needed to puncture the first gas cartridge.
Selon un autre mode de réalisation avantageux, l'organe de poussée du premier dispositif de percussion est une charge pyrotechnique.According to another advantageous embodiment, the thrust member of the first percussion device is a pyrotechnic charge.
Brève description des figuresBrief description of figures
D’autres avantages et caractéristiques ressortiront mieux de la description qui va suivre d’un mode d’exécution de l’invention en référence aux figures annexées sur lesquelles :Other advantages and characteristics will emerge better from the following description of an embodiment of the invention with reference to the appended figures in which:
Claims (14)
- un cylindre (21) dont l'extrémité inférieure est fermée de façon non permanente et l'extrémité supérieure est en partie obturée par une butée (22) recevant sur sa partie supérieure la première cartouche (4) de gaz,
- un piston (23) muni d'une extrémité perforante (24) orientée en direction de l'extrémité supérieure dudit cylindre (21) et coulissant entre une position "normale" dans laquelle son extrémité perforante (24) n'est pas en contact avec la première cartouche (4) de gaz et une position "activation" dans laquelle ladite extrémité perforante (24) a perforé ladite première cartouche (4) de gaz,
- un organe de poussée apte à mettre en mouvement ledit piston (23) de sa position "normale" à sa position "activation", et
- un organe de retenue (25) permettant de maintenir ledit piston (23) dans sa position "normale",
en ce queledit deuxième dispositif de percussion (30) comprend au moins :
- un cylindre (31) dont l'extrémité inférieure est en partie fermée et l'extrémité supérieure est en partie obturée par une butée (32) recevant sur sa partie supérieure la deuxième cartouche (5) de gaz, et comprenant en partie supérieure au moins un orifice de refoulement (35) mettant en relation l'intérieur dudit cylindre (31) et l'extérieur du dispositif de gonflage (1),
- un piston (33) muni d'une extrémité perforante (34) orientée en direction de l'extrémité supérieure dudit cylindre (31) et coulissant entre une position "normale" dans laquelle son extrémité perforante (34) n'est pas en contact avec la deuxième cartouche (5) de gaz et une position "activation" dans laquelle ladite extrémité perforante (34) a perforé ladite deuxième cartouche (5) de gaz,
- un organe de retenue (25) permettant de maintenir ledit piston (23) dans sa position "normale", et
en ce quele carter de libération (3) comporte un conduit principal (13) mettant en relation fluidique la partie supérieure du cylindre (21) du premier dispositif de percussion (20) avec l'extrémité inférieure du cylindre (31) de chaque deuxième dispositif de percussion (30) par le biais d'un conduit secondaire (14) débouchant d'un côté sous l'extrémité inférieure dudit cylindre (31) de chaque deuxième dispositif de percussion (30) et de l'autre dans ledit conduit principal (13) afin d'acheminer, en cas d'activation, d'acheminer le gaz de la première cartouche (4) de gaz libéré par le piston (23) jusqu'au sous chaque piston (33) de sorte à le mettre en mouvement de sa position "normale" à sa position "activation".Inflation device (1) for an inflatable safety vest comprising a storage casing (2) containing a first cartridge (4) of pressurized gas and at least one second cartridge (5) of pressurized gas arranged side by side so as to form a row and a release casing (3) comprising a first percussion device (20) making it possible, in the event of activation, to perforate the first gas cartridge (4) so as to release the gas which it contains in gaseous form and a second percussion device (30) associated with each second gas cartridge (5) and making it possible, in the event of activation, to perforate the latter so as to release the gas which it contains in gaseous form, said inflation device (1) being characterized in that said first percussion device (20) comprises at least:
- a cylinder (21) whose lower end is closed in a non-permanent manner and the upper end is partly closed by a stop (22) receiving on its upper part the first cartridge (4) of gas,
- a piston (23) provided with a perforating end (24) oriented towards the upper end of said cylinder (21) and sliding between a "normal" position in which its perforating end (24) is not in contact with the first gas cartridge (4) and an "activation" position in which said piercing end (24) has punctured said first gas cartridge (4),
- a thrust member capable of moving said piston (23) from its "normal" position to its "activation" position, and
- a retaining member (25) making it possible to maintain said piston (23) in its "normal" position,
in that said second percussion device (30) comprises at least:
- a cylinder (31) whose lower end is partly closed and the upper end is partly closed by a stop (32) receiving on its upper part the second cartridge (5) of gas, and comprising in the upper part the at least one discharge orifice (35) connecting the inside of said cylinder (31) and the outside of the inflation device (1),
- a piston (33) provided with a perforating end (34) oriented towards the upper end of said cylinder (31) and sliding between a "normal" position in which its perforating end (34) is not in contact with the second gas cartridge (5) and an "activation" position in which said piercing end (34) has punctured said second gas cartridge (5),
- a retaining member (25) making it possible to maintain said piston (23) in its "normal" position, and
in that the release casing (3) comprises a main duct (13) placing the upper part of the cylinder (21) of the first percussion device (20) in fluidic relationship with the lower end of the cylinder (31) of each second percussion device (30) through a secondary duct (14) opening on one side under the lower end of said cylinder (31) of each second percussion device (30) and on the other in said main duct (13) in order to convey, in the event of activation, to convey the gas of the first cartridge (4) of gas released by the piston (23) to the under each piston (33) so as to put it in movement from its "normal" position to its "activation" position.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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FR2114205A FR3130518A1 (en) | 2021-12-22 | 2021-12-22 | PNEUMATIC FLAT INFLATOR |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2114205A FR3130518A1 (en) | 2021-12-22 | 2021-12-22 | PNEUMATIC FLAT INFLATOR |
FR2114205 | 2021-12-22 |
Publications (1)
Publication Number | Publication Date |
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FR3130518A1 true FR3130518A1 (en) | 2023-06-23 |
Family
ID=80786176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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FR2114205A Pending FR3130518A1 (en) | 2021-12-22 | 2021-12-22 | PNEUMATIC FLAT INFLATOR |
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Country | Link |
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FR (1) | FR3130518A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4224994A (en) * | 1979-06-21 | 1980-09-30 | Deere & Company | Single control for gas actuated fire extinguishers |
US4500014A (en) * | 1982-12-14 | 1985-02-19 | Halkey-Roberts Corp. | Multiple firing inflator |
WO2018096300A1 (en) * | 2016-11-25 | 2018-05-31 | In&Motion | Quick refill for an inflation device |
-
2021
- 2021-12-22 FR FR2114205A patent/FR3130518A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4224994A (en) * | 1979-06-21 | 1980-09-30 | Deere & Company | Single control for gas actuated fire extinguishers |
US4500014A (en) * | 1982-12-14 | 1985-02-19 | Halkey-Roberts Corp. | Multiple firing inflator |
WO2018096300A1 (en) * | 2016-11-25 | 2018-05-31 | In&Motion | Quick refill for an inflation device |
FR3059210A1 (en) | 2016-11-25 | 2018-06-01 | In&Motion | RAPID REFILL FOR INFLATION DEVICE |
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